Display screen or portion thereof with icon



FIG. 1 is a front view of a display screen or portion thereof with icon showing our new design; and,

FIG. 2 is a front view of a second embodiment.

The dot dash lines in the figures illustrate the display screen or portion thereof, and define the boundary of the claimed design. The dot dash lines form no part of the claimed design. 

CLAIM I claim the ornamental design for a display screen or portion thereof with icon, as shown and described. 